LATIN CAPITAL LETTER SHARP S

The letter ẞ (U+1E9E, LATIN CAPITAL LETTER SHARP S) is the uppercase version of ß (U+00DF LATIN SMALL LETTER SHARP S).

The uppercase formatting of this letter does not work correctly in Word.

The function UCASE does not work correctly in Excel

The function LCASE("ẞ") does not work correctly in Excel